Abstract：
BACKGROUND:The aim of this study was to contrast the collapse values of the postoperative weight-bearing areas of different tantalum rod implant positions, fibula implantation, and core decompression model and to investigate the advantages and disadvantages of tantalum rod implantation in different ranges of osteonecrosis in comparison with other methods. MATERIAL AND METHODS:The 3D finite element method was used to establish the 3D finite element model of normal upper femur, 3D finite element model after tantalum rod implantation into different positions of the upper femur in different osteonecrosis ranges, and other 3D finite element models for simulating fibula implant and core decompression. RESULTS:The collapse values in the weight-bearing area of the femoral head of the tantalum rod implant model inside the osteonecrosis area, implant model in the middle of the osteonecrosis area, fibula implant model, and shortening implant model exhibited no statistically significant differences (p>0.05) when the osteonecrosis range was small (60°). The stress values on the artificial bone surface for the tantalum rod implant model inside the osteonecrosis area and the shortening implant model exhibited statistical significance (p<0.01). CONCLUSIONS:Tantalum rod implantation into the osteonecrosis area can reduce the collapse values in the weight-bearing area when osteonecrosis of the femoral head (ONFH) was in a certain range, thereby obtaining better clinical effects. When ONFH was in a large range (120°), the tantalum rod implantation inside the osteonecrosis area, shortening implant or fibula implant can reduce the collapse values of the femoral head, as assessed by other methods.
journal_name
Med Sci Monitjournal_title
Medical science monitor : international medical journal of experimental and clinical researchauthors
Shi J,Chen J,Wu J,Chen F,Huang G,Wang Z,Zhao G,Wei Y,Wang Sdoi
10.12659/MSM.890920subject
Has Abstractpub_date
2014-12-06 00:00:00pages
2556-64eissn
1234-1010issn
1643-3750pii
890920journal_volume
20pub_type
杂志文章abstract：:Hypertrophic obstructive cardiomyopathy (HOCM) is a common inheritable cardiac disorder that can lead to symptoms of dyspnea, angina pectoris, and syncope. Symptomatic patients are usually treated with negatively inotropic agents, such as beta-blockers, calcium channel blockers, or disopyramide. However, up to 10% of ...
journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章,评审
doi：
更新日期：2007-04-01 00:00:00
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：10.12659/MSM.912470
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章
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更新日期：2001-01-01 00:00:00
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：
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